CVE-2026-109558: EdgeEver 1.6.0 through 1.112.0 Stored XSS via TemplatesPane Template Preview

Severity: high (CVSS 8.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-12 · updated 2026-10-16
Weakness: CWE-79

Description

EdgeEver 1.6.0 through 1.112.0 contains a stored cross-site scripting vulnerability in TemplatesPane.tsx that renders template contentMarkdown with raw HTML via dangerouslySetInnerHTML without sanitization. Attackers can write templates containing HTML event handlers through an API or MCP token to run script on preview and access the privileged window.edgeeverDesktop bridge.

Affected products

tianma-if EdgeEver: from 1.6.0 through 1.112.0

References

https://github.com/tianma-if/edgeever
https://github.com/tianma-if/edgeever/blob/f6ade70423ba366077653dbb8ac43a677933c776/apps/web/src/components/TemplatesPane.tsx#L150-L158
https://github.com/tianma-if/edgeever/commit/6b5027e8b4becbee0c0de7cd1a3d04af78ca87ca
https://github.com/tianma-if/edgeever/issues/533
https://github.com/tianma-if/edgeever/issues/546
https://www.vulncheck.com/advisories/edgeever-1.6.0-through-1.112.0-stored-xss-via-templatespane-template-preview
https://github.com/tianma-if/edgeever/issues/533

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